From yann.tristant at free.fr  Mon Jun 26 10:01:41 2006
From: yann.tristant at free.fr (yann.tristant)
Date: Mon, 26 Jun 2006 19:01:41 +0200
Subject: [tg] problems by using TG
Message-ID: <20060626170131.0D802226AC@smtp6-g19.free.fr>

Dear Sirs,
 
After using the scripts joined to this mail, I didin't receive any error
message during the execution of the TG's program. But when I'm using
gengraph program, I have a long list of error messages like that one: n?
sequence out of order.
 
Please could you explain to me the reasons of this message and how I can
deal with it. 
 
Thank you in advance for your answer.
 
Regards.
 
 
script client
 on 0:60 tcp 192.168.2.254.4322 
at 5 setup 
at 30 arrival exponential 0.0001 length constant 1024 
time 20
 
script server
 on 0:60 tcp 192.168.2.254.4322 server 
at 1.1 wait 100 
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From b_a_denny at yahoo.com  Mon Jun 26 13:34:04 2006
From: b_a_denny at yahoo.com (Barbara Denny)
Date: Mon, 26 Jun 2006 13:34:04 -0700 (PDT)
Subject: [tg] problems by using TG
In-Reply-To: <20060626170131.0D802226AC@smtp6-g19.free.fr>
Message-ID: <20060626203404.41904.qmail@web30108.mail.mud.yahoo.com>

Hi,

Unfortunately, I didn't write the gengraph script.
I will look at this later but it sounds like
it may be a side effect of your stream being
TCP.  What options did you give to gengraph?
Do the graphs look "bad"? (Or are you only concerned
about the error messages?) Please keep the output
from this experiment in case I can't duplicate
it. 

BTW, just because there were no errors reported 
during the execution of a TG script does not mean 
there was no bad behavior.  TG does not try to do
any realtime analysis of the flows.  It simply
records information upon receipt of a packet or
an error as reported by the kernel.  The user needs
to verify that the traffic was sent as desired.
(This is important as you push TG to the maximum 
sending rate.  It will only send as fast as the 
kernel will allow and it will not tell you that 
you didn't get a constant interarrival rate for
example). 


barbara

--- "yann.tristant" <yann.tristant at free.fr> wrote:

> Dear Sirs,
>  
> After using the scripts joined to this mail, I
> didin't receive any error
> message during the execution of the TG's program.
> But when I'm using
> gengraph program, I have a long list of error
> messages like that one: n???
> sequence out of order.
>  
> Please could you explain to me the reasons of this
> message and how I can
> deal with it. 
>  
> Thank you in advance for your answer.
>  
> Regards.
>  
>  
> script client
>  on 0:60 tcp 192.168.2.254.4322 
> at 5 setup 
> at 30 arrival exponential 0.0001 length constant
> 1024 
> time 20
>  
> script server
>  on 0:60 tcp 192.168.2.254.4322 server 
> at 1.1 wait 100 
> > _______________________________________________
> tg mailing list
> tg at postel.org
> http://mailman.postel.org/mailman/listinfo/tg
>